Gate



J. H'. BARD March 30 1926.

GATE A Filed July 16, 19%4 2 Sheets-Sheet 2 i @tbox wege Patented Mar. 30, l1926.

UNITED- 'STATES Paralwr oFF1cE.- y

' JAMES HOLMES BARD, OF BELL, CALIFORNIA.,

GATE.

Aipplicationvledr-J'uly 16, '1924, Serial' N-o. 726,376. i

y which the following is a specification.

My invention relates to gates, doors and similarclosures, and a purpose of my invention is the provision of a gate having mechanism adapted to be operated by 'a vehicle approaching lthe gate to effect lthe automatic opening thereof, and in such manner that when' the vvehicle has' passed through the gate the mechanism will operate to automatically return the gate to closed position; V n It is also a purpose of my invention'to provide a gate operating mechanismfwhich, in addition to being simple, inexpensive and eifectivein operation,.is adaptable to vertically swingingv gates, horizontally sliding gatesand vertically pivoted gates.

I will describe three forms ofv gate each embodying `my invention, andv will then point out the novel featuresv thereof. in claims. 'y f, Y Y {In the accompanying drawings 'A Figure 1 is a view showing in side elevation, and partly in section, one form of ygate and operating mechanism embodying my invention; y

Figure 2 isa vertical sectional view taken on the line 2--2 of4 Figure 1;

Figure 3 is avlewrsimilar toFigure 2,

showing another formof gatev'and operat` Y ing mechanism embodying my invention;

Figure aisy a fragmentary perspective view, partlvin section,` showing a third form of gate and operating mechanism em# bodying my invention. i 'l Similar reference characters refer to simf ilar parts in each of the several'vie'w's'. Referring @specifically tothe drawings, and particularly to Figures 1 and 2, I have here shown a gate of the vertically swing ing type,.including two gate sectioir` G 'and G. In the closed position of the vgate sections G and G8, as` illustrated in solid lines in Figurel, they are disposed in intersecting relation to a roadway R, and by means of suitable mechanism the gate sections are adapted to be swung upwardly fand outwardly in opposite directions to the openy Y,

position shown in dot and dash lines 'in F igurevl.. As'the mechanisms for actuating the gate'sections are iden'ticaha descriptiony of one kwill suffice for both.

The mechanism, for the gate section G l in the present instance comprisesa standard 15 extending upwardly within a pocket or well V16 formed in and extendingytrans verselyV of the roadway R. kThe gate sec tion G is pivoted at the poi-nt indicated at 17 upon-the upper end of the standard 15, and rigidly connected' to the pivot ofthe gate isan arm 18 connected'to a leverv19 by a link 20. The'lever'19is fulcrumed at the point indicated at 21 .to a standard 22, and a spring 23 is `connected to the lower end of the lever 19 for normally urging the l upper end carrying the link 2O upwardly .into the position shown'in Figure `1. "An

actuating bar 24 is pivotally connected to the lever 19 and extends upwardly through a slotformed in `a bridge member 25, which,- -as shown in Figurey 1, is U-sh'aped in cross sectionand is shown in Figure 2 in bridging relation to the 'well or'pocket 16. f The bridge member 25 is disposed substantially medially of a trough 26 formed in the road# way R," and inl this trough are mounted ac-k tuating `platforms-,27andf28, the two being 'arranged' inendto end relation and having their confronting ends operatively connected by across bar 29 which is secured Ato the under side of' one of the platforms so as to provide a ledge upon which the end of the other platform is adapted to repose.

The outer end ofthe platforms engage abutments 3() which limit...the movement of the platforms outwardly with respect to the gate. Asl shown in Figure 2, the platform 27 reposes on the upper end of the actuating bar 24? so that when the platform; is depressed a downward movement ofthe actuating Vbar is effected. It will ,be notedl thatrthe actuating bar- 24' is positively .guided in its movement by-virtue ofl its-passagethrough the slot in the bridge member 25; thus it will at all times ybe positioned to y 4.be actuatedupon l depression of the platforms 27 and 28.

It lwill be understood that the roadway forms 27 or 28, depending upon inwhich direction the vehicle is approaching the gate. t Y t In order to insure proper operation of the mechanism for elevatingthe gate sections, I have provided counter-weights 3l which arel secured to the pivots 17 so as to urge the gates to open position and to tend to operate the mechanism to close the gate sections when the `latter are in open position. n

In operation, the wheels of a vehicle approaching the gate, say over the.platforms 27, the platforms will be depressed to lower the actuating bars 24, thereby moving the levers 19 to the dotted line position shown in Figure l. Duringthe downward movement of the levers the arms 18 are rocked ldownwardly to elevate the gate sections Gr and f G and to swing the` latter outwardly to the open position shown. In the open position the weights 3l operate to urge the gate sections back to closedposition as has been described, but as long as the vehicle remains upon the platformV the lreturn of the gate sections to closed position is prevented. As the vehicle passes from the platforms 27 on to the platforms 28 through the operative lconnection provided by the bar 29, the actuating bars 24 areymaintained inY depressed position so that the gate sections are retained in vopen position until the vehicle completely passes olf of the platforms'V 23.

Referring nowto Figure 3, I have herein shown another form of gate and actuating mechanism embodying my linvention, in which the gate is made upof two sections 'I and T mounted for horizontal sliding movement by means. of tracks 35 which move on f rollers 36. As'in the first embodiment of my invention, two gate sections 'I and are each provided Vwith actuating mechanism for moving the gates to open and closed position, and as the two mechanisms are identical a ldescription of'one willsuce fori both. A platform 37 is movable by the wheels of a vehicle to depress an actuating bar 33movable t irough a bridging member 39, the memberr being arranged in bridging relation to a pocket or well 40. "The actuating bar 33 isl connected to a nbell crank lever 44 fulcrumed at the point indicated at 42 and pivotally connected to a lever 43 through a link 44. The lever 43 is fulcrumed at the point indicated at 45, and the long arm of the lever is pivotally'con'- nected to a link 46 pivotally secured to the meeting edge of the corresponding gate section T. A spring 47 connects the bell crank lever 4l and the lever 43 to normally urge the lever to the position shown in Figure 3, so that when the gate section is in open position, as indicated in dash lines in Figure 3, the spring will acty on the lever to return the gate section to closed position.

open position by a depression of the platform 37 which actuates the bar 38 to rock the bell crank lever 41 to the dotted line posi- Y In operation, the gate section is moved to i tion shown, wherein the lever 43 is swung t shown a third embodiment of my invention,

in Vwhich D designates a section of a doorv or gate pivoted lto swing about a vertical axis by means of hinges 50. A platform 51,

similar to the platforms 27 and 37, is adapted to actuatel the actuating bar 52 connected to a bellv crank lever 53 for actuating a lever 54 through a link 55. The lever 54 is operatively connected to an arm 56 through a link 57, and the arm 56is secured to the door section so yas to swing with the latter. A spring 58-connects the levers 53 and 54 and functions to urge the door section' to closed position in a manner similar to the -spring 47. y i

In operation, a depression of the platform 5l actuates the mechanism to throw the arm 56 outwardly in such manner as to swing thedoor section D to openposition. The spring 58 serves to actuate the mechanism in returning the door section to closed position after the vehicle has passedoft1 of the platform 51.

*Although* I have herein shown and described only three forms of gates and actuating mechanisms therefor, all embodying my invention, it Vis .to be understood that various changes and modifications .may be made herein without departing from the spirit of the inventionand the Vspirit and scope of the appended claims. 'l l/Vhat I claim is: l. In combination, a trough adapted to span a well disposed transversely of a road` lever and standard for `urging said levers 2. The combination as embodied in claim to a position in which the gate is closed, and 1 wherein said actuating bar extends upan actuating bar pivoted on the second lever Wardly through an opening formed in the 10 and extending upwardly linto the trough-so through so as to be guided for movement as to be depressed by said platforms, .Whereby the latter and to directly engage the unby said levers Willbe actuated to open said der Surface of one of the platforms. t 1 gate against the action of said spring. JAMES HOLMES BARD. 

